John butleb



(No Model.)

J. BUTLER. ELECTRICAL APPARATUS FOR MEDICAL USE. o. 252,180.

Patented Jan. 10, 1882.

INVENTOR i ATTORNEYS.

WITNESSES:

rt PETERS. Pholo-umn n her, Washingien. I10.

UNITED STATES PATENT OFFICE.

JOHN BUTLER, OF NEW YORK, N. Y.

ELECTRICAL APPARATUS FOR MEDICAL use.

SPECIFICATION forming part of Letters Patent No. 252,180,.dated January 10, 1882.

' Application filed May 20,1881 (No model.)

.To all whom it may concern:

Be it known that 1, JOHN BUTLER, of the city, county, and State of New York, have invented a new and Improved Electrical Apparatus for Medical Use, of which the following is a specification.

My improvements relate to apparatus used for medical purposes, combining mechanical manipulation and electrical treatment.

The object of the invention is to allow of us ing a galvanic battery for such purposein con- -nection with the manipulating-roller; and to that end my invention consists in an apparatus combining a roller and induction coil, as hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a plan view of the apparatus, and Fig. 2 a side elevation of the same.

Similar letters of reference indicate corresponding parts.

A is a handle of suitable form, provided with I forked arms a a, between which the rollerB is sustained by a shaft, 1), that is journaled in arms a.

O is an induction-coil fitted on the handle, and in metallic connection at one end with post, g, that is sustained 0n the handle by an insulated support. The outer end of springf is extended into the path of the contact-points e and the post g connected with the inductioncoil.

In use the wire from one pole of a galvanic battery will be connected to post g, thereby connecting the roller B with the battery through the wire coil or helix,so that the roller constitutes one electrode. The other electrode, consisting of a sponge or other device, will be connected to the other pole of the battery and be held by theperson being operated upon. The apparatus is held by the operator, who uses the roller in the usual manner, and the rota tion of the roller makes and breaks the circuit.

The roller B is hollow, and, if desired, the coil may be placed within the roller instead of upon the handle. The roller is preferably made in two parts separated by a ring or band of non-conducting material, as shown at a. One portionwill be connected to one pole of the battery and the other portion with the other pole, so that the roller forms both the negative and positive electrodes.

The interrupter may also be arranged otherwise than as shown.

Having thus described my invention, [claim as new as far as perfected- 1. The combination of rollerB, provided with contact-breaker d, wire coil or helix 0, and hnn= dle A, substantially as shown and described.

2. In electrical apparatus for medical use, the combination of a wire coil or helix with a roller-electrode and connections to a battery, substantially as shown and described.

3. In electrical apparatus, the .double electrode consisting of roller B, made of two insulated portions, substantially as shown and de scribed.

) JOHN BUTLER.

Witnesses:

JAMES H. HUNTER, GEO. D. WALKER. 

